Most everything I would say has already been said. But I'm going to pile on anyway and add a few new things
1) My experience has been that if you double the stakes, you're going to lose half your core players over the next year. People are at that game for a reason. (I understand you're talking about only increasing one table.)
2) That's a lot of cash and/or electronic transactions - not sure how you expanded your game so quickly, but would be careful about how you vet players especially since a stake increase is going to significantly increase the amount of cash. A game with $10k-ish in cash is definitely something that draws the wrong kind of attention. And the loss levels can be the old "wife calls the cops on the illegal game when husband comes home down 2k and can't pay the rent".
3) Adding a rock and rotational bomb pots can help up the action without the issues above - that's what I did in my game and very happy with it.
4) I also added a quarterly game with higher stakes to sate my folks who want to turn my game into a card room. It's well attended, and one of the primary proponents has used that as an argument that it was time to raise the stakes overall. I've walked them through the player base to help them understand who we'd lose, and who we had a chance of losing if they went on a downswing at higher stakes, and they've become good with the quarterly.
5) Ultimately, if people want a casino/card room/underground game, they should go play in one of those.